To the south, PA 75 northbound meets PA 16/PA 416 at the southern split
of the triplex. PA 75 north continues to the left with PA 16 westbound/PA
416 northbound into town.

Jay Rotz 5/02

Approaching the southern triplex split from the north, PA 75 splits off
to the south, while PA 16/PA 416 continues toward the southeast.

Jay Rotz 5/02

The Mercersburg triplex runs through the heart of the grassy town. PA
75 and PA 416 are signed in the same direction, while PA 16, the parent
route of PA 416, is signed in a perpendicular direction.

Jay Rotz 5/02

Jumping to the middle of the triplex, the road makes a slight turn to
approach downtown Mercersburg.

Jay Rotz 5/02

At the north end of town, a similar sign configuration stands at the
northern triplex split, where PA 16 leaves PA 75/PA 416 and heads northwest.
Mileages to nearby towns are shown on the green sign on the left side
of the road. PA 75/PA 416 splits just a mile to the north.

Jay Rotz 5/02

Here is a close-up view of the mileage sign and little white signs below.
PA uses a single SR number on its state routes, and for state route multiplexes,
the lowest route number becomes the SR number. Here SR 16 is PA 16 to
the right and PA 16/PA 75/PA 416 to the left, and SR 75 is PA 75/PA 416
to the right.